Bessey MMS-8 8-Inch MightyMini All Steel Sliding Arm Clamp Opens to a full 8" Does the work of 1", 2" & 3" C-Clamps Manufactured to Bessey's high quality standards and includes a standard swivel mount pad for better grip Tempered steel sliding arm, drop forged and electrogalvanized for added strength and an infinite life Rail, fixed jaws and pressure plate heat-formed in one piece from cold drawn profiled steel optimized for high static stress loadings